/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.zookeeper;

/**
 * a class that represents the stats associated with quotas
 */
public class StatsTrack {
	private long bytes;
	private String byteStr = "bytes";
	private int count;
	private String countStr = "count";

	/**
	 * a default constructor for stats
	 */
	public StatsTrack() {
		this(null);
	}

	/**
	 * the stat string should be of the form count=int,bytes=long if stats is called
	 * with null the count and bytes are initialized to -1.
	 * 
	 * @param stats the stat string to be intialized with
	 */
	public StatsTrack(String stats) {
		if (stats == null) {
			stats = "count=-1,bytes=-1";
		}
		String[] split = stats.split(",");
		if (split.length != 2) {
			throw new IllegalArgumentException("invalid string " + stats);
		}
		count = Integer.parseInt(split[0].split("=")[1]);
		bytes = Long.parseLong(split[1].split("=")[1]);
	}

	/**
	 * get the count of bytes allowed as part of quota
	 *
	 * @return the bytes as part of this string
	 */
	public long getBytes() {
		return this.bytes;
	}

	/**
	 * get the count of nodes allowed as part of quota
	 *
	 * @return the count as part of this string
	 */
	public int getCount() {
		return this.count;
	}

	/**
	 * set teh bytes for this stat tracker.
	 *
	 * @param bytes the bytes to set with
	 */
	public void setBytes(long bytes) {
		this.bytes = bytes;
	}

	/**
	 * set the count for this stat tracker.
	 *
	 * @param count the count to set with
	 */
	public void setCount(int count) {
		this.count = count;
	}

	@Override
	/*
	 * returns the string that maps to this stat tracking.
	 */
	public String toString() {
		return countStr + "=" + count + "," + byteStr + "=" + bytes;
	}
}
